The unrest did not long remain quelled. Indeed, so threatening did the situation become that Flores appealed to the Brazilians for aid. In response the northern republic sent an army of four thousand men, who occupied the principal cities of Uruguay. The result, as may be imagined, was a yet more marked seething of discontent. In 1855, despite the presence of the foreign troops, the Colorado, or red party, now definitely formed, revolted, and by force of arms obtained possession of the capital for a while. The success of the revolutionists was short-lived. General Oribe and many other members of the Blanco, or white, group, came to the assistance of Flores. In the end a compromise was effected. The revolutionists retired; Flores resigned his post, and Don Manuel Basilio Bustamente was elected as temporary President. At this stage of Uruguayan history, however, space does not permit a detailed description of the various revolutions that followed the one upon the heels of the other, and that were separated by intervals of merely a few weeks or months. An event of striking importance, however, occurred in 1858, during the presidentship of Don Gabriel A. Pereira. The latter had been opposed by General César Diaz, who had stood as an unsuccessful candidate for the office, and the inevitable jealousies soon became embittered once more to the point of active explosion. The policy of Diaz was now to incorporate the Banda Oriental with the Argentine Provinces, and thus to form a single country that should be known as the United States of La Plata. On the discovery of his plan Diaz was exiled to Buenos Aires, and with him many of the more prominent members of the Colorado party. Diaz, however, soon made his way back across the river, and, collecting an army of eight hundred men, marched upon Montevideo, his forces swelling in numbers as he went. Unsuccessful in its attempt upon the capital, the revolutionist army retired, and, after an indecisive battle or two, met with total defeat at Cagancha. Diaz was taken prisoner in this action, and was shot in company with fifty of his followers.